Cooler for milk or other liquids



Jan. 17, 1939. v P, F. BLOMQUl ST 2,144,177

COOLER FOR MILK OR OTHER LIQU lDS Filed Dec. 1956 p H.176/0Mgu1'8 Patented Jan. 17, 1939 PATENT OFFICE COOLER FOR MILK OR OTHER LIQUIDS Peter Ulrik Fredrik Blomquist, Gothenburg, Sweden Application December 8, 1936, Serial No. 114,839

In Sweden October 16, 1935 2 Claims.

This invention relates to a. cooler for milk comprising a container adapted to contain a cooling medium and disposed within a milk-can in such a manner that it is accessible from the exterior of the milk-can and may be filled with cooling medium such as ice, a cooling mixture or the like and emptied of its contents without the milk-can being opened or the contents of the milk-can being disturbed.

One object of the invention is to provide a cooler of this type, which will be simple, cheap to manufacture and very eflicient and durable in use.

With this and other objects in view there is illustrated in the accompanying drawing one form, in which the invention may be conveniently embodied in practice.

The drawing shows a vertical sectional view through an ordinary milk-can provided with a cooler according to the invention.

In the embodiment of the invention illustrated in the drawing the milk-can I is provided with a tubular container 2 for ice 3, cooling mixture or the like. In this embodiment the container is fitted in the milk-can in such a manner that it may easily be removed, and the container is so designed that it may be filled or emptied without removement from the milk-can. The upper end of the container 2 is provided with a tubular flange 4' and projects at substantially right angle through the breast plate 5 of the milk-can. The flange 4 is fitted in a collar 6 welded to the breast plate 5, as indicated at 'I. A cap 8, which may be provided with an air hole 9, is screwed onto the collar 6. If desired a packing may be provided between the cap 8 and the end surface of the collar 6. The lower portion ID of the container 2 is directed substantially at right angle to the bottom plate I I of the milk-can and projects through said plate. The portion III has a flange l2 of the same outer diameter as the flange I4 at the upper end of the container, so that the container can be removed and inserted through the collar 6. The projecting end of the portion ID has a collar I3 screwed thereon, which collar forces the flange I2 against the bottom plate II, so that a perfect seal is obtained. In the outer end of the collar I3 a plug I4 is screwed. Said plug is provided with a small drain hole I5 covered by a spring-actuated ball valve IS. The spring I! of the ball valve is interposed between the ball and a perforated washer I8 disposed between the plug I4 and the end surface of the portion III. It is thus possible to remove melting Water or other liquid from the container without removing the plug I I.

The above described construction permits a very cheap manufacture of milk-cans adapted for the transportation and cooling of milk and a good seal of the milk-can as well as the container for the cooling medium is obtained, since the container is of simple and easily manufactured shape and the joints between the con tainer and the milk-can are simple in construction and easy to make tight.

The details of the invention may naturally be subjected to modifications within the scope of the following claims. The container for the cooling medium may be connected to the milkcan by means of flanges welded, soldered or riveted to the milk-can and welded, soldered or pressed onto the container. The container for the cooling medium may also project through the bottom of the milk-can a sufficient distance to form a flange on the outside of the can, which flange may be welded or soldered to the can. The fastening and closingmeans for the container may naturally be modified in any suitable way. The container may also be connected to the bottom of the milkcan by means of suitable closing plugs. The volume and cooling surface of the container may be increased by forming the container to one or more loops, preferably disposed coaxially with the milk-can, so that no pockets are formed in the container.

What I claim is:-

l. A milk-can provided with cooling means comprising a container disposed within said milkcan and adapted to contain a cooling medium, a downwardly inclined breast plate in said milkcan, an intake portion to said container disposed in said breast plate, and an outlet portion of said container disposed at substantially right angle to the bottom of the milk-can.

2. A milk-can provided with cooling means comprising a container disposed within said milkcan and adapted to contain a cooling medium, a downwardly inclined breast plate in said milkcan, an intake portion to said container disposed in said breast plate, an outlet portion of said container disposed at substantially right angle to the bottom of the milk-can, a closing plug provided in said outlet portion, and a Valve such as a spring-actuated ball valve in said closing plug.

PETER ULRIK FREDRIK BLOMQUIST. 

